Title :
Efficiency Treatment of Composite Right/Left-Handed TL Zeroth-Order Resonator Antenna
Author :
David Vrba;Milan Polivka;Pavel Hamouz;Milan Svanda;Premysl Hudec
Author_Institution :
Department of Electromagnetic Field, Czech Technical University in Prague, 16627 Technick? 2, Prague 6, Czech Republic. vrbad1@fel.cvut.cz
Abstract :
Antenna efficiency of zeroth-order resonator (ZOR) antenna implemented in composite right/left-handed transmission line (CRLH TL) microstrip structure is treated by method of moment simulator IE3D. Radiation is investigated from individual portions of the antenna structure according to calculated amplitude of surface current density. Dominantly radiating regions are identified, geometrically emphasized, and efficiency improved version of CRLH ZOR antenna is designed, realized, measured and compared with initial design. Improvement of simulation antenna efficiency from 10 to 75% and 4x increased measured gain at design ZOR frequency has been found.
Keywords :
"Microstrip antennas","Transmission line antennas","Antenna measurements","Microstrip resonators","Moment methods","Surface treatment","Current density","Transmission line measurements","Frequency measurement","Gain measurement"
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751507
